\begin{tikzpicture}[>=Stealth, scale=0.8, transform shape]
    \tikzset{
        pics/coin/.style args={#1/#2}{
        code = {
            \draw (0, 0) node {\Large #1} circle (0.4);
            \draw (0, -0.7) node {#2};
        }}}

    \draw (0, 0) pic {coin={正/1}};
    \draw (1, 0) pic {coin={正/2}};

    \draw (3, 0) pic {coin={正/1}};
    \draw (4, 0) pic {coin={反/2}};

    \draw (0, -2) pic {coin={反/1}};
    \draw (1, -2) pic {coin={正/2}};

    \draw (3, -2) pic {coin={反/1}};
    \draw (4, -2) pic {coin={反/2}};
\end{tikzpicture}
